Car-wheel



(No Model.)

J. A. PARKER.

OAR WHEEL.

8 w gw// /r z 0 a i [JV VEN'TOR $200514 .Pariaer.

NiTnn STATES PATENT FHQE.

JACOB A. PARKER, OF TERRE HAUTE, INDIANA.

CAR WHEEL.

SPECIFICATION forming part of Letters Patent No 372,701, dated November 8, 1887.

Application filed February 3. 1887.

To (ZZZ whom it may concern.-

Be it known that l, J A0013 A. PARKER, a citizen of the United States, residing at Terre Haute, in the county of Vigo and State of Indiana, have invented certain new and useful Improvements in TramWVheels'for Bank or Mining Cars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appcrtains to make and use the same.

This invention relates to certain new and useful improvements in tranrwheels for bank cars, such as are used in mining and excavating operations; and it consists substantially in the same as constructed, and in such peculiar arrangement and combinations of parts as will hereinafter be more particularly described and claimed.

Before proceeding with a more full descrip tion of the construction of the said wheel and the combination therewith of the several parts contributing to the operation of my invention, I desire to state that wheels possessing approximate characteristics to the present have been heretofore patented,- but many of them have proven more or less inoperative or defective, and, besides, the constructions resorted to are substantially different from that herein employed.

The object of my invention is to so construct a wheel of the character referred to that, the same being all in one piece, the use of nuts, bolts, and oil-joints is dispensed with; also to obtain maximum wearingsurface between the parts, and to obtain a wheel of minimum Weight in entirety, yet having heavy wearing parts.

Finally, the invention has such other objects in view as will more fully appear from the following description, when taken in connection with the accompanying drawings, wherein- Figure 1 represents a side view of a wheel constructed in accordance with my invention, and Fig. 2 is a diametric sectional view thereof' on the line was; and Fig. 3 is a similar view on the line y y.

Reference being had to the several parts by the letters marked thereon, A represents the wheel as a whole, which is all cast in one piece, a representing the hub, and b the periphery or tread, between which the spokes 0 Serial No. 226,884. (No model.)

intersect or extend, the said tread or peripheral portion being chilled for the purpose of hardness, and provided with the usual annular flange or rim, d, as shown.

For the purpose of increased hearing between thejournal of the axle B and the hub, I extend the two ends of the latter beyond the planes of side of the tread, and in order that the wearing parts be protected from sand and dirt I provide in each end of said hub, surrounding the longitudinal opening therein, an annular channel or recess, 6, and in the recess of the inner side is placed a close-fitting collar, f, surrounding the axle, and formed with or separate therefrom, as desired, while in the recess e of the outer side of the hub I place a flexible collar or Washer, g, which is held tightly in place by an outer steel washer, 7L, fitting between the outer edge or face of the hub and a pin, r, passing through the axlejournal.

The wheel is cast or formed with an annular reservoir, j, for oil to lubricate the axle, the supply of which oil is had through four longilongitudinal apertures, l 2 3 4, extending practically the whole length of the hub, and thereby feeding oil to the journal equally and on all sides.

It should be remarked that if too much oil is supplied through the apertures which happen to be uppermost it will be taken up by the others and conveyed back to the reservoir, and thus will a continuous lubrication or supply be had until all of the contained lubricant is utilized.

The capacity of the reservoir can be made great enough to hold sufficient oil for a long time. The filling of said reservoir is effected through openings Z m in the sides thereof, the surrounding walls whereof being formed with a gaspipe thread and the openings closed by plugs a it, having a similar thread, the said plugs being preferably of malleable iron, to avoid danger of breakage and consequent leakage of oil.

It is thought from the foregoing description that my invention will be thoroughly understood by those skilled in the art, and, in addition to what has already been said, I desire to mention that by furnishing or providing the bearings for the wheel for the full length of ICO - the hub much more wearing-surface is had than with many former wheels, the wearing being equal the entire length of the journal.

I am aware that it is not new,'broadly, to construct wheels of the present character with a continuous lubricating chamber within the hub, from which oil is supplied to the axle through suitable openings, the said chamber being provided with side openings, through which the lubricant is supplied; and I am also aware that it has been common heretofore to provide extended bearings for the axle; but I am not aware of the existence formerly of the specific construction and arrangement of parts hereinafter claimed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is r A wheel of the character described, having its hub extended beyond the tread or rim and surrounded by an inner continuous lubricating-chamber communicating with longitudinal apertures 1 2 3 4, and supply-openings lm in one side thereof, the said hub having an annular recess in each end, in combination 

